RE: Ranking Function based on Probabilistic Retrieval Framework

Hi, Lucene 4 has this already: e.g. to enable BM25 ranking use the following Similarity implementation and set it on IndexWriter and IndexSearcher: http://lucene.apache.org/core/4_7_1/core/org/apache/lucene/search/similarities/BM25Similarity.html The full list is here and documentation is here:

Re: Ranking Function based on Probabilistic Retrieval Framework

Hi Prakash, Have you seed Robert's write up? http://java.dzone.com/news/flexible-ranking-lucene-4 Ahmet On Thursday, April 3, 2014 2:30 PM, Prakash Dubey wrote: Dear all, Why there is no Ranking function based on Probabilistic Retrieval Framework